See if this helps you. Your model must have passed model update (Ctrl+D) without error.
Select a BusSelector block where the input bus is the one you are interested. Run
b=get_param(gcb,'InputSignals')
b includes all the signals in the bus. It may have a hirarchy. Wirte a script to expand it if too many levels.
celldisp(b) will expand all. Copy and paste and do some processing.
